Romans 9:18

So He has mercy on any man that He chooses to, and He hardens any man that He chooses to harden.

Treasury of Scripture Knowledge

Summary

And Pharaoh sent, and, behold, there was not one of the cattle of the Israelites dead. And the heart of Pharaoh was hardened, and he did not let the people go.

The heart

Bible References

The heart

Romans 9:18
So He has mercy on any man that He chooses to, and He hardens any man that He chooses to harden.